org.melati.poem
Class CachedCount

java.lang.Object
  org.melati.poem.CachedQuery
      org.melati.poem.CachedCount

Direct Known Subclasses:

CachedExists

public class CachedCount
extends CachedQuery

A cached instance of an SQL count query.

Field Summary

Fields inherited from class org.melati.poem.CachedQuery

rows, statements, table

Constructor Summary

CachedCount(Persistent criteria, boolean includeDeleted, boolean excludeUnselectable)
Create a count from a Persistent.

CachedCount(Table table, String whereClause)
Constructor where whereClause does not involve other tables.

CachedCount(Table table, String whereClause, Table[] otherTables)
Constructor.

Method Summary

int

count()

Methods inherited from class org.melati.poem.CachedQuery

compute, extract, getTable, setQuery, statements, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CachedCount

public CachedCount(Table table,
                   String whereClause,
                   Table[] otherTables)

Constructor.

Parameters:

table - the table of which we are a count

whereClause - discriminator, may be null

otherTables - other tables involved in whereClause, if any

CachedCount

public CachedCount(Persistent criteria,
                   boolean includeDeleted,
                   boolean excludeUnselectable)

Create a count from a Persistent.

Parameters:

criteria - the Persistent representing the query

includeDeleted - whether to include records marked as deleted

excludeUnselectable - Whether to append unselectable exclusion SQL

CachedCount

public CachedCount(Table table,
                   String whereClause)

Constructor where whereClause does not involve other tables.

Parameters:

table - the table to count

whereClause - discrimination, can be null

Method Detail

count

public int count()

Returns:

the count itself